Pskov dialects are transitional between Belarusian and Russian, so this makes me think that <г> was pronounced as /ɣ/, but I have also read that Old Novgorodian has had an impact on Northern Russian dialects, which of course pronounce <г> as /ɡ/. I didn't find anything about this in Zalizniak's treatise, unfortunately. Perhaps there was even a divide between the north and south of the Novgorod Republic in regards to pronunciation. I'm not sure at all.
Does anyone have any idea how, for example, the name of новъгород itself was actually pronounced? Thank you very much.